Sheet-metal wall.



E. G. CAUGHEY/ SHEET METAL WALL. APPLICATION FILED APR. 8. 1914.

PatentedSept. 14, 1915.

2 SHEETS-SHEET 1.

Fae 5.

FIG-- 4 FIG" 2 z JM.

7% INVENTOR.

WITNESSES GOA/92% m m T A E. G. CAUGHEY.

SHEET METAL WALL.

APPLICATION FILED APR. 8. 1914.

Patented Sept. 14, 1915.

2 SHEETS-SHEET 2.

INVENTOR. mm? 1) ATTORNEY.S

' WITNESSES:

ETDTAT/Still) G. CAUGl -IEY, 0F SEWIOKLEY, PENNSYIIVANIA, ASSIGNO'R OF ONE-HALF TO EDVTARD H. SCI-LANE, OF YOUNGSTOWN, OHIO.

. SHEET-METAL WALL.

Specification of Letters Patent.

Patented Sept. 14, 1915.

Application filed April 8, 1914. Serial No. 830,461.

To all whom it may concern Be it known that L'Eownno GQCAUGHEY, residing at Sewickley, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have inventedor discovered certain new and useful Improvements in Sheet-MetalWalls, of which improvements the following is a specification.

My invention relates to the construction of sheet-metal walls; and, while applicable generally to walls of any size, partitions, and such like structures, finds particular application in the walls of sheet-metal boxes of the sort ordinarily employed in shipment of merchandise. e

The object of my improvements is to produce an angular sheet-metal wall (for a box or other use) provided with a reinforcing rib, the entire wall being formed of a single continuous sheet by the rolling of a channel in the sheet of material before the wall is shaped, which reinforcing rib shall extend transversely to. the angle and in continuity around the angle in the wall.

The accompanying drawings show the invention applied inthe making of a sheetmetal box or packing-case. v

Figures l-8 show the box in preferred form; and Figs. 9-11 show it in alternative. Fig. l is a view in perspective of the side-walls of the box, when formed, and before top and bottom are applied; Fig. 2 is a view in plan of the sheet of material of which the side-walls of the boX are formed, with the lines of cutting and bending indicated upon it; Fig. 3 is a view on larger scale in section vertically through the boxwall, the plane of section being indicated at 111-411, Fig. 1; Figs. 4L and 5 are enlarged views in perspective, and Figs. 6, 7, and S are views on substantially the same scale in horizontal section, of aportion of one corner of the finished boxwall, showing alternative manners of arranging and securing the material at the corner. It will be observed that Fig. 8 is a view in section of the structure shown in Fig. 5, the plane of section being indicated in the figure last named by the line VIII-VIII. Fig. 9 is a fragmentary view in perspective of a corner of a box in which the invention is employed in modification; Fig. 10 is a view in section on the plane indicated by the line XVXV, Fig. 9; and Fig. 11 is a view corresponding to Fig. 2, showing the blank from which the .box of Fig. 9 is to be formed, with the lines of slitting and bendlng indicated.

All of these figures show inwardly protruding channels, and such is my preferred construction.

I here show and describe the invention applied to the structure of a box; it will be understood from what has been said that the invention is applicable not to boxes merely, nor to receptacles merely, but to walls generally, and my claims are not limited in this respect to the particular application chosen for illustration.

Referring first to'Fig. 2., in it is shown in plan the sheet of metal to be shaped to form the box-wall (Fig. 1). It is shaped with longitudinal channels, extending preferably from end toend ofthe sheet, formed preferably in a rolling mill, in shape preferably fiat-bottomed, andwith rectangular sides.all this is made plain in the statement that the sheet of Fig. 2 is bent on the mn, 079, to the channeled section shown in Fig. 3. The number of such channels is not essential tothe invention and in each case will be determined by consideration of matters of weight, over-all dimensions, intended service, and the like. Before the sheet is sochanneled (though the order of these steps is not important, except as a matter of convenience) it isslitted at the part or parts where corners are to be formed; and, in case thesheet is to form the continuous side-wall of a rectangular box as shown, these places of slitting will be four, at properly spaced intervals. The metal is slit at opposite points where the margins of the channel-bottom are to extend, as indicated in the full lines w-a:, y-z; another slit is cut across the channel-bottom,,connecting at one end the slits already defined, as at The side-walls of the channels are then slit, and'these slits in the side-walls will be arranged adjacent and preferably midway of the length of the longitudinal slits 'ww, 2; these slits in the side-walls are alined with one another and lie on the line of intended bending for forming the corner; they are indicated at r-s, tu. After the sheet has been slit and shaped, as already described, the next step in the operation is the bending of the sheet on a transverse line to form the corner.

the bottom of the channel.

This bending will not, ordinarily, occur in the shop where the preceding operations have been performed; but the sheets are shipped in the form thus far described, and the bending of the sheets to form the receptacle walls is done in the users manufactory. The line ,of bending willbe coincident with the line of the slots 1"s, tu, and

the direction of bending will preferably be such as to bring the protrusion of the channel inward. As the sheet is thus bent, portions of the sheet adjacent the slits will be turned out of alinement and allowed to overlap one another. The ends of the sheet are secured, by overlapping and'riveting as at l2, Fig. l, or otherwise, to form the boxwall structure of Fig. 1.

The tongue of metal 10 w y .2 (Fig. 2) may be cut away (in which case, the corner when bent will be that indicated in section in Fig. 7) or it may be and preferably is retained to constitute means of securing the angle more firmly. Fig. -l shows this tongue 3 lapped around the corner on the outside and riveted in the bottom of the channel on the 7 opposite side of the corner; Fig. 6 shows it lapped in the same way but, instead of being secured by a rivet, its tip is turned through a slot formed for that purpose in Spot-welding is, of course, a known alternative to these modes of securing. It will be understood that, be fore the corner is bent, this tongue may be turned aside and so brought to round the corner on the inside instead of on the outside of the box; and in this case it may be secured in such manner as has already been indicated or in other manner familiar to those skilled in work of this nature. Figs. 7 and 8 show the tongue cut away and the corner secured, in the one case (Fig. 7) by riveting through the overlapping portions of the channel-walls, as at 4, and in the other case (Fig. 8-compare Fig. 5 by the application of a reinforcing and securing plate, 5. This plate, as indicated in Fig. 5, may or may not overlap the channel walls, and it may be secured by any preferred means rivets, spot-welding, or otherwise. It will be understood that the overlapping of the i,153,eoi

channel-walls may be eliminated, if desired, by cutting away portions which otherwise would overlap; but I prefer the overlapping both of the tongue formed from the channel-bottom and the lips formed from the channel-walls, as means of strengthening.

The alternative form shown in Figs. 9 11 will readily be understood by comparison with Figs. 4, 6, and 2, respectively. The

longitudinal slits 20-00, y.e are formed, as before; but there is a continuous transverse slit across the channel 'on the lines of the corner-bend, from r to u. The channel is shaped inward but the tongues 10, 11, 12, and 13 formed by the slitting are bent outward. The triangular tongues 12 and 13 formed in the channelwalls are bent outward and preferably held between the outwardly bent rectangular tongues 10 and 11 formed in the bottom of the channel. 'Whenthe box-corner, is so formed bybending, the tongues longitudinal slits at one end, and slit further transversely across the wallsof said channel at'points intermediate the length of said longitudinal slits, the said sheet being further bent on a line coincident with the slits across the channel walls, and with the raised side of the sheet inward, the tongue formed by the slitting of the channel bottom as aforesaid overlapping and being, secured to the adjacent portion of the channel bottom.

In testimony whereof I have hereunto set my hand.

EDWARD. c. GAUGHEY.

Witnesses i CHAs. J. JAoKsoN, S. S. BAKER.

Copies of this patent may be obtained for five cents each,'by addressingthe Commissioner of Patents,

' 1 Washington, D. G. 

